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32 lines
828 B
Python
32 lines
828 B
Python
6 years ago
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#!/usr/bin/env python3
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with open('input.txt', 'r') as f:
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package_ids = [x.strip() for x in f.readlines()]
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# print(package_ids)
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def find_close(package_ids):
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for i, el_1 in enumerate(package_ids[:len(package_ids)]):
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for el_2 in package_ids[i + 1:]:
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diffs = 0
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for j, char_1 in enumerate(el_1):
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char_2 = el_2[j]
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if char_1 != char_2:
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diffs += 1
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if diffs == 1:
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return el_1, el_2
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def remove_differing(id_1, id_2):
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for i, char_1 in enumerate(id_1):
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char_2 = id_2[i]
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if char_1 != char_2:
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return id_1[:i] + id_1[i + 1:]
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close_1, close_2 = find_close(package_ids)
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common = remove_differing(close_1, close_2)
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print('Close IDs:', close_1, close_2)
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print('Common letters:', common)
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